OverviewDosageSide EffectsInteractionsHalf-Life

Generic Name: Diclofenac sodium

Brands: Cambia, Cataflam, Voltaren, Zipsor, Zorvolex

Class: Nonsteroidal anti-inflammatory 

Availability: Prescription required

Molecular Formula: C14H11Cl2NO2

Substance UNII: 144O8QL0L1

What is Diclofenac?

Diclofenac sodium is a nonsteroidal anti-inflammatory drug (NSAID). It is often sold under the trade names Cambia, Cataflam, Voltaren, Zipsor, and Zorvolex.

What is Diclofenac Used For?

Diclofenac is for pain relief and the treatment of inflammatory diseases such as gout or arthritis. It is also an option for the treatment of acute migraines. 

How Does Diclofenac Work?

Like all NSAIDs, diclofenac inhibits the creation of specific compounds associated with pain and inflammation.  Diclofenac specifically works by inhibiting COX 1 and COX 2 (cyclooxygenase) similar to other NSAIDs.

How Long Does it Take for Diclofenac to Work?

Typically, patients get some relief in about 30 minutes for tablets or capsules

Do Not Use Diclofenac If:

There are several situations where this medication may not be the right choice for you. According to the FDA, the following should not use diclofenac:

  • Hypersensitivity to diclofenac
  • History of allergic reactions to NSAIDs
  • Severe kidney impairment
  • Upcoming surgery (possibly)
  • Actively bleeding (severely)

Please note that this list may not be complete, and there may be other situations where the use of this drug is not advisable.

Disclaimer: this article does not constitute or replace medical advice. If you have an emergency or a serious medical question, please contact a medical professional or call 911 immediately. To see our full medical disclaimer, visit our Terms of Use page.

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